-7.07% is the change from 665 to 618
Calculation steps:
[( 618 - 665 ) ÷ 665] x 100 = -7.07%
Formula
Percentage change = [(618 - 665) / 665] x 100
Subtract the new number by the original number
618 - 665 = -47
-47 ÷ 665 = -0.07067669172932331
-0.07067669172932331 x 100 = -7.07%